Note 2 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Notes Tables

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Options	Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2015		20,500		$	23.00
Exercised		(5,500	)		23.00
Forfeited or expired		---			---
Outstanding at September 30, 2015		15,000		$	23.00		0.107	$	122
Exercisable at September 30, 2015		15,000		$	23.00		0.107	$	122